Telemetry Radio V3 Quick Start Guide

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Telemetry Radio V3
Quick Start Guide

Overview
A Holybro Telemetry Radio is a small, light and inexpensive open source radio
platform that typically allows ranges of better than 300m “out of the box” (the
range can be extended to several kilometres with the use of a patch antenna on
the ground). The radio uses open source firmware which has been specially
designed to work well with MAVLink packets and to be integrated with the Mission
Planner, Copter, Rover and Plane.
The radios can be either 915Mhz or 433Mhz and you should purchase the model
which is appropriate for your country/region.

SPECIFICATIONS
Processing
100 mW maximum output power (adjustable) -117 dBm receive sensitivity
Open-source SIK firmware

RP-SMA connector
2-way full-duplex communication through adaptive TDM UART interface
Transparent serial link
MAVLink protocol framing
Frequency Hopping Spread Spectrum (FHSS) Configurable duty cycle
Error correction corrects up to 25% of bit errors Open-source SIK firmware
Configurable through Mission Planner & APM Planner
FT230X is a USB to BASIC UART IC
Features
Interchangeable air and ground modules 915 or 433 mHz
Micro-USB port
4-position JST-GH connector
Dimensions
26 x 53 x 10.7mm (without antenna)
Power
Supply voltage: 5V DC (from USB or JST-GH)
Transmit current: 100 mA at 20dBm
Receive current: 25 mA
Serial interface: 3.3 V UART

Port Description

Status LEDs
The radios have 2 status LEDs, one red and one green. The meaning of the
different LED states is:
Green LED blinking - searching for another radio
Green LED solid - link is established with another radio
Red LED flashing - transmitting data
Red LED solid - in firmware update mode

Connect to Pixhawk
Use the 4 pin JST-GH connector that should have come with the radio to connect
the radio to your Pixhawk’s “Telem 1” (“Telem 2” can also be used but the
default recommendation is “Telem1”).
Connect to a PC
Connecting the radio to your Windows PC is as simple as connecting the micro
USB cable (which should have been included with the radio) to your PC. The
necessary drivers should be installed automatically and the radio will appear as a
new “USB Serial Port” in the Windows Device Manager under Ports (COM &
LPT). The Mission Planner’s COM Port selection drop-down should also contain
the same new COM port.
Connect to TABLET
Connect the ground module to your tablet using the Android adapter cable.
Connect the colored end to the tablet and the black end to the radio.

Holybro is a registered trademark of Holybro, registered in the U.S. and other countries.
©Copyright 2018 Holybro. All Rights Reserved.
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